'FINISHED EQUILIBRIUM ' is what the PAs reference.
From what i know, it takes 24 hours for a sauce to get settled, aka finished equilibrium,.
Think of making pickles. Cukes (high ph naturally) are put in vinegar solutions, and it takes 2 weeks for the cukes to be infused with vinegar which makes them pickled.
If the cukes would be tested for pH 1 week in, the cukes would fail the pH test.